A description of a product’s purpose, composition, derivation and quality criteriaThe characteristics of a product that determine whether it m... More. It is produced at planning time, as soon as the need for the productAn artefact that is produced, is quantifiable, and can be ei... More is identified. It should always be used as a basis for acceptanceThe formal process of accepting delivery of a deliverable or... More of the productAn artefact that is produced, is quantifiable, and can be ei... More by the customerThe person or group who commissioned the work and will benef... More.